Police said all of the targets were convicted felons, two of whom were murder suspects. Miller reported that they were all somehow related to the Black Guerrilla Family gang, which has been closely linked to much of the city's violent and drug-related crime.

The raids were tightly coordinated, with each team appearing as its own procession, Miller reported. Final instructions were given in a parking lot that was turned into a command post.

The teams included SWAT officers from Baltimore County, with one car bearing a memorial to Officer Jason Schneider, who was killed during a raid in Baltimore County in August.

There were no such tragedies Tuesday morning. The raids were all executed at about the same time to prevent one target from warning another, Miller reported. Even so, she said only about a third of the people police were seeking were actually in the houses that were hit.

At one house, officers said the target had no time to stash his drugs. Police said they found about $400 worth of heroin, a cellphone and IDs, but no guns.

There was no resistance from the man police were seeking. The early-morning hour apparently caught him off guard, Miller said, and he sat quietly on a sofa while police asked him what they might find when they searched his house.

City police said they hope the raids are getting the gang's attention.

"Baltimore is not a place for them to operate. They've overcome other cities throughout the country. They've penetrated our prison systems, and we are going to make every effort we can as a law enforcement agency to prohibit them from continuing their operation in Baltimore," said Deputy Police Commissioner Dean Palmere.